BlackSky CEO sells 20K shares at $21.83 average

BlackSky’s CEO reported a 20,000-share Rule 10b5-1 plan sale and now directly holds 1,119,676 Class A shares, including RSUs.

Rhea-AI Filing Summary

BlackSky Technology Inc. (BKSY) reported that CEO and President Brian E. O'Toole sold 20,000 shares of Class A Common Stock on September 9, 2026 in an open-market or private transaction at a weighted average price of $21.83 per share.

The sale was made pursuant to a Rule 10b5-1 trading plan adopted in June 2026. After this transaction, O'Toole directly holds 1,119,676 shares of Class A Common Stock, and a portion of these holdings consists of RSUs, each representing a contingent right to receive one share subject to vesting conditions.

Insider Trade Summary 10b5-1

Net Seller: 20,000 shares

Net Sell 1 txn

Insider O'Toole Brian E

Role CEO and President

Sold 20,000 shs ($437K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	20,000	$21.83	$437K

Holdings After Transaction: Class A Common Stock — 1,119,676 shares (Direct)

Footnotes (3)

1. F1. This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in June 2026.
2. F2. This transaction was executed in multiple trades at prices ranging from $21.52 to $22.23. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.
3. F3. Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

Key Figures

Shares sold: 20,000 shares Weighted average sale price: $21.83 per share Sale price range: $21.52–$22.23 per share +2 more

5 metrics

Shares sold 20,000 shares Class A Common Stock sale by CEO on September 9, 2026

Weighted average sale price $21.83 per share Average price for the 20,000-share sale on September 9, 2026

Sale price range $21.52–$22.23 per share Price range of multiple trades comprising the reported sale

Shares held after transaction 1,119,676 shares Direct Class A Common Stock holdings of CEO after the sale

Rule 10b5-1 plan adoption date June 2026 Month when the CEO adopted the trading plan used for this sale

Key Terms

Rule 10b5-1 trading plan, RSUs, weighted average sale price

3 terms

Rule 10b5-1 trading plan regulatory

"This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

RSUs financial

"Certain of these securities are RSUs. Each RSU represents a contingent right"

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

weighted average sale price financial

"The price reported above reflects the weighted average sale price"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did BKSY report for CEO Brian O'Toole?

BlackSky reported that CEO Brian E. O'Toole sold 20,000 shares of Class A Common Stock on September 9, 2026 in an open-market or private transaction at a weighted average price of $21.83 per share.

How many BKSY shares does the CEO hold after the September 9, 2026 sale?

After the sale, CEO Brian E. O'Toole directly holds 1,119,676 shares of BlackSky Class A Common Stock. The filing notes that certain of these securities are RSUs, which are subject to vesting conditions.

Was the BKSY CEO’s September 9, 2026 sale under a Rule 10b5-1 plan?

Yes. The filing states the transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by Brian E. O'Toole in June 2026, indicating the trades were pre-arranged under that plan.

What price range did the BKSY CEO’s 20,000-share sale cover?

The 20,000-share sale was executed in multiple trades at prices ranging from $21.52 to $22.23 per share. The reported $21.83 reflects the weighted average sale price across those trades.

What type of securities were involved in the BKSY CEO’s Form 4 transaction?

The transaction involved Class A Common Stock of BlackSky Technology Inc. The filing also notes that certain of the reported securities are RSUs, with each RSU representing a contingent right to receive one share subject to vesting.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/10/2026 - 04:30 PM Accepted by SEC EDGAR 09/10/2026 - 04:29 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

O'Toole Brian E

(Last) (First) (Middle)

C/O BLACKSKY TECHNOLOGY INC.,

2411 DULLES CORNER PARK, SUITE 300

(Street)

HERNDON VIRGINIA 20171

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BlackSky Technology Inc. [ BKSY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO and President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/09/2026		S(1)		20,000	D	$21.83(2)	1,119,676(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in June 2026.

2. This transaction was executed in multiple trades at prices ranging from $21.52 to $22.23. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

3. Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

Remarks:

	/s/ Christiana L. Lin, attorney-in-fact on behalf of Brian E. OToole	09/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)